1 Mysticism Catherine of Siena was of the most popular catholic saint. She was famous for her work with underprivileged and her charitable service. She derived her mysticism in the practical relief of human suffering. She gained legendary status while alive and the legendary status continued ever after her life because of the strong following she had. As can be ascribed from her literary works, she was independent in her approach of following religion; St Catherine was passionate regarding her engagement with institutional and spiritual aspects of Christianity. However, during her life, she was surrounded by mystery, doubt, and the supernatural. At an early age, she had already begun to experience the deepest levels of mysticism through visions, ecstasies, her stigmata, and her “mystical marriage with Christ”. In her book, Dialogo, which details her mystical experiences, she describes her stigmata, “I saw the crucified Lord coming down to me in a great light…Then from the marks of His most sacred wounds I saw five blood-red rays coming down upon me”. Mysticism according to William James is a sudden feeling which is found in an extremely frequent phenomenon, which may give a person a realization of having "been here before,” (William James 1902). The feeling may carry them into a different realm. This realm of consciousness according to him may be produced by intoxicants. The mystical states are absolutely authoritative over the individuals to whom they come. These experiences grant individuals significant revelations. The methods to achieve these mystical experiences are offered in Hindu yoga, Buddhism, Sufism, and Christian orison. As per William James, four characteristics segregate states of consciousness into mystical and non-mystical which are described below in relevance to St. Catherine. INEFFABILITY Ineffability means a state which cannot be described in words. During her life St Catherine had unmatchable love for humanity in a way that was not very popular those days. Her love for religion and humanity was in the form of serving the humans who were in great pain and grief. She used to be so engrossed in her love for humanity that at times she even forgot to eat. During her later part of the life, she could not even sleep at the despair of humans. Easier said than done, her approach to follow religion in spirit and institutional perspective was extraordinary in the way that can neither be described in words nor can be documented. NOETIC QUALITY This quality can take a person closest to the state of supreme knowledge. It is a state of revelation and illumination. These are again, inarticulate but they are carrying with them a curious sense of authority for after-time. St. Catherine, when she was at age of seven, consecrated her virginity. When she was sixteen, she took up the habit of Dominican Tertiaries. As a result of her illuminations, she gave a new direction to the life of anchorites in a small room in the house owned by her .